44 TENTHKEDINID^). 



2. Themos olfersii. 



Hylotoma olfersii, Klug, Jahrb. d. Insect, i. p. 249, n. 91 (1834). 

 Hab. Brazil. 



3. Themos surinamensis. 



Hylotoma surinamensis, Klug, Berl. Mag. vi. p. 307, n. 38 (1814). 

 Hab. Surinam. 



26. PTILIA. 



Ptilia, St.-Farg. Mon. Tenthr. p. 49 (1823) : Erie. Mtth. x. p. 237 



(1825). 

 Didymia, St.-Farg. $ Serv. Enc. Meth. x.p. 574 (1825). 

 Rusobria, Cameron, Trans. JEnt. Soc. 1878, p. 150. 

 Hylotoma, § 4, Klug, Jahrb. d. Insect, i. p. 245 (1834). 



1. Ptilia peletieri. 



ierii 

 Hab. Carthagena. 



Schizocerus peletierii, Gray, Griff. Anim. Kingd. xv. p. 403, pi. lxvi. 

 fig. 1 (1832). 



2. Ptilia brasiliensis. 



Ptilia brasiliensis, St.-Farg. Mon. Tenthr. p. 50, n. 143 (1823). 

 Schizocera xanthoptera, Perty, Del. Anim. Art. p. 130, pi. xxvi. fig. 5 



(1830-34). 

 Hylotoma xanthoptera, Klug, Jahrb. d. Insect, i. p. 245 (1834). ' 



Hab. Brazil. 



a. $ . Brazil. 



b. 2 • Rio Janeiro. A. Fry, Esq. 



c. $ . Rio Janeiro. From the Voyage of the ' Rattlesnake.' 



(Collected by J. MacGilliyray, Jan. 

 d-f. $*. ' 1848.) 



3. Ptilia melanura. 



Ptilia melanura, St.-Farg. $ Serv. Enc. Meth. x. p. 238 (1825). 

 Hab. South America. 



4. Ptilia megaptera. 



Rusobria megaptera, Cameron, Trans. Ent. Soc. 1878, p. 151. 



Hab. Brazil. 



* St.-Fargeau, in his original description, states that the thorax is black. 

 He corrected this error in the ' Encyclopedie Methodique,' but it has hitherto 

 prevented his genus and typical species from being properly recognized. One 

 of the specimens in the British Museum is labelled peletierii, Gray, but has no 

 resemblance to the figure of that species. 



